netfilter: xtables: prepare for on-demand hook register

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This change prepares for upcoming on-demand xtables hook registration.

We change the protoypes of the register/unregister functions.
A followup patch will then add nf_hook_register/unregister calls
to the iptables one.

Once a hook is registered packets will be picked up, so all assignments
of the form

net->ipv4.iptable_$table = new_table

have to be moved to ip(6)t_register_table, else we can see NULL
net->ipv4.iptable_$table later.

This patch doesn't change functionality; without this the actual change
simply gets too big.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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This commit is contained in:

Florian Westphal 2016-02-25 10:08:35 +01:00 • committed by Pablo Neira Ayuso

parent 5f547391f5

commit a67dd266ad

17 changed files with 107 additions and 88 deletions

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9

include/linux/netfilter_arp/arp_tables.h

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9

include/linux/netfilter_ipv4/ip_tables.h

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9

include/linux/netfilter_ipv6/ip6_tables.h

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